Scientific studies have shown that there is no relation or connection between autism and vaccines or vaccinations. This result has been proven with scientific methods. In particular, there is no relation between the Measles-Mumps-Rubella (MMR) vaccine, which is a live virus vaccine, and autism. Thiomersal, an organic mercury derivative used as a stabilizer in vaccines, is blamed, but deep-sea fish also contain a certain amount of mercury. In a comprehensive study conducted in Denmark with a total of 657,461 children, 6517 of whom were diagnosed with autism, and followed up for 14 years (1999-2013), it was shown that there is no relation between the etiology of autism and the MMR vaccine. To access the full text of the article:

Hviid A. Et al. Ann Intern Med. 2019;170:513-520. doi:10.7326/M18-2101.